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CVE-2019-11246— kubectl cp allows symlink directory traversal

Quick assessment

Affected
Kubernetes Kubernetes
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Google Kubernetes是美国谷歌（Google）公司的一套开源的Docker容器集群管理系统。该系统为容器化的应用提供资源调度、部署运行、服务发现和扩容缩容等功能。 Google Kubernetes中存在路径遍历漏洞。该漏洞源于网络系统或产品未能正确地过滤资源或文件路径中的特殊元素。攻击者可利用该漏洞访问受限目录之外的位置。

AI Predicted 7.3 Difficulty: Easy EPSS 3.62% · P89
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I. Basic Information for CVE-2019-11246

Vulnerability Information
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Vulnerability Title
kubectl cp allows symlink directory traversal
Source: CVE Program / CVE List V5
Vulnerability Description
The kubectl cp command allows copying files between containers and the user machine. To copy files from a container, Kubernetes runs tar inside the container to create a tar archive, copies it over the network, and kubectl unpacks it on the user’s machine. If the tar binary in the container is malicious, it could run any code and output unexpected, malicious results. An attacker could use this to write files to any path on the user’s machine when kubectl cp is called, limited only by the system permissions of the local user. Kubernetes affected versions include versions prior to 1.12.9, versions prior to 1.13.6, versions prior to 1.14.2, and versions 1.1, 1.2, 1.4, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 1.10, 1.11.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-61
Source: CVE Program / CVE List V5
Vulnerability Title
Google Kubernetes 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Google Kubernetes是美国谷歌（Google）公司的一套开源的Docker容器集群管理系统。该系统为容器化的应用提供资源调度、部署运行、服务发现和扩容缩容等功能。 Google Kubernetes中存在路径遍历漏洞。该漏洞源于网络系统或产品未能正确地过滤资源或文件路径中的特殊元素。攻击者可利用该漏洞访问受限目录之外的位置。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Kubernetes Kubernetes prior to 1.12.9 -

II. Public POCs for CVE-2019-11246

# POC Description Source Link Shenlong Link
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default-local-qwen3.6 · 13680 chars
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III. Intelligence Information for CVE-2019-11246

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Patches & Fixes for CVE-2019-11246 (1)

Vendor Advisories for CVE-2019-11246 (1)

Other References for CVE-2019-11246 (1)

Same Patch Batch · Kubernetes · 2019-08-29 · 6 CVEs total

CVE-2019-11245 kubelet-started container uid changes to root after first restart or if image is already p
CVE-2019-11247 Kubernetes kube-apiserver allows access to custom resources via wrong scope
CVE-2019-11248 Kubernetes kubelet exposes /debug/pprof info on healthz port
CVE-2019-11249 kubectl cp allows symlink directory traversal
CVE-2019-11250 Kubernetes client-go logs authorization headers at debug verbosity levels

IV. Related Vulnerabilities

Same product: Kubernetes
Same vendor: Kubernetes
Same weakness: CWE-61

V. Comments for CVE-2019-11246

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